Question: What river has the strongest and largest flow at the mouth of Kattegat?
Paraphrase: At the mouth of Kattegat what river flows the strongest?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q3529419 . ?ent wdt:P2225 ?obj . ?ent wdt:P403 wd:Q131716 } ORDER BY DESC(?obj)LIMIT 5 
Answer: Ätran, Nissan, Viskan